public TreeListNode CreateDbCodeTreeHead(DevExpress.XtraTreeList.TreeList treeList) { if (treeList.Nodes.Count > 0) { return(treeList.Nodes.FirstNode.RootNode); } treeList.Appearance.Row.Font = new System.Drawing.Font("宋体", 15f, System.Drawing.FontStyle.Bold); treeList.Appearance.Row.ForeColor = System.Drawing.Color.Blue; treeList.Appearance.SelectedRow.Font = new System.Drawing.Font("宋体", 15f); treeList.Appearance.SelectedRow.ForeColor = System.Drawing.Color.Blue; treeList.Appearance.HeaderPanel.ForeColor = System.Drawing.Color.Blue; treeList.Appearance.FocusedCell.ForeColor = System.Drawing.Color.Red; DevExpress.XtraTreeList.Columns.TreeListColumn colo = treeList.Columns.Add(); colo.Caption = "DB服务器"; colo.Visible = true; treeList.OptionsView.ShowColumns = false; //隐藏列头 treeList.OptionsView.ShowVertLines = false; //去掉列边框线 treeList.OptionsView.ShowIndicator = false; //是否隐藏行号列 treeList.OptionsView.AutoWidth = true; //设置是否自动调节列宽 treeList.Columns[0].OptionsColumn.AllowEdit = false; //设置是否编辑 treeList.EndSort(); //禁止排序 treeList.OptionsBehavior.Editable = false; //禁止编辑 TreeListNode _node = treeList.Nodes.Add("DB服务器", 0); //为添加下文的Node做准备 DbLoginFor _DbLoginFor = new DbLoginFor(); _DbLoginFor.LoginDb_Id = "0"; _DbLoginFor.LoginDb_Descp = "DB服务器"; _node.Tag = _DbLoginFor; _node.ImageIndex = 0; _node.SelectImageIndex = 0; _node.ExpandAll(); return(_node); }